import axios, { AxiosResponse, AxiosRequestConfig } from 'axios';
import { tansParams, blobValidate } from '@/utils/common';
import { HttpStatus } from '@/utils/RespEnum';
import { errorCode } from '@/utils/errorCode';
// import { ElMessage, ElMessageBox, ElNotification, ElLoading } from 'element-plus'
import cache from '@/plugins/cache';
// 是否显示重新登录
export const isRelogin = { show: false };

axios.defaults.headers['Content-Type'] = 'application/json;charset=utf-8';
// 创建 axios 实例
const service = axios.create({
    baseURL: import.meta.env.VITE_APP_BASE_API,
    timeout: 50000
});

// 请求拦截器
service.interceptors.request.use(
    (config: AxiosRequestConfig) => {
        const isToken = (config.headers || {}).isToken === false;
        // 是否需要防止数据重复提交
        const isRepeatSubmit = (config.headers || {}).repeatSubmit === false;
        if (cache.local.get('token') && !isToken && config.headers !== undefined && config.headers !== null) {
            config.headers['Authorization'] = 'Bearer ' + cache.local.get('token'); // 让每个请求携带自定义token 请根据实际情况自行修改
        }
        // get请求映射params参数
        if (config.method === 'get' && config.params) {
            let url = config.url + '?' + tansParams(config.params);
            url = url.slice(0, -1);
            config.params = {};
            config.url = url;
        }

        if (!isRepeatSubmit && (config.method === 'post' || config.method === 'put')) {
            const requestObj = {
                url: config.url,
                data: typeof config.data === 'object' ? JSON.stringify(config.data) : config.data,
                time: new Date().getTime()
            };
            const sessionObj = cache.session.getJSON('sessionObj');
            if (sessionObj === undefined || sessionObj === null || sessionObj === '') {
                cache.session.setJSON('sessionObj', requestObj);
            } else {
                const s_url = sessionObj.url; // 请求地址
                const s_data = sessionObj.data; // 请求数据
                const s_time = sessionObj.time; // 请求时间
                const interval = 500; // 间隔时间(ms)，小于此时间视为重复提交
                if (s_data === requestObj.data && requestObj.time - s_time < interval && s_url === requestObj.url) {
                    const message = '数据正在处理，请勿重复提交';
                    console.warn(`[${s_url}]: ` + message);
                    return Promise.reject(new Error(message));
                } else {
                    cache.session.setJSON('sessionObj', requestObj);
                }
            }
        }
        // FormData数据去请求头Content-Type
        if (config.data instanceof FormData && config.headers !== undefined && config.headers !== null) {
            delete config.headers['Content-Type'];
        }
        return config;
    },
    (error: any) => {
        console.log(error);
        return Promise.reject(error);
    }
);

// 响应拦截器
service.interceptors.response.use(
    (res: AxiosResponse) => {
        // 未设置状态码则默认成功状态
        const code = res.data.status || HttpStatus.SUCCESS;
        // 获取错误信息
        const msg = errorCode[code] || res.data.message || errorCode['default'];
        // 二进制数据则直接返回
        if (res.request.responseType === 'blob' || res.request.responseType === 'arraybuffer') {
            return res.data;
        }
        if (code === 401) {
            // prettier-ignore
            if (!isRelogin.show) {
                isRelogin.show = true;
                ElMessageBox.confirm('登录状态已过期，您可以继续留在该页面，或者重新登录', '系统提示', {
                    confirmButtonText: '重新登录',
                    cancelButtonText: '取消',
                    type: 'warning'
                }).then(() => {
                    isRelogin.show = false;
                    // 登出代码
                }).catch(() => {
                    isRelogin.show = false;
                });
            }
            return Promise.reject('无效的会话，或者会话已过期，请重新登录。');
        } else if (code === HttpStatus.SERVER_ERROR) {
            console.log(msg);
            ElMessage({ message: msg, type: 'error' });
            return Promise.reject(new Error(msg));
        } else if (code === HttpStatus.WARN) {
            ElMessage({ message: msg, type: 'warning' });
            return Promise.reject(new Error(msg));
        } else if (code !== HttpStatus.SUCCESS) {
            ElNotification.error({ title: msg });
            return Promise.reject('error');
        } else {
            return Promise.resolve(res.data);
        }
    },
    (error: any) => {
        let { message } = error;
        if (message == 'Network Error') {
            message = '后端接口连接异常';
        } else if (message.includes('timeout')) {
            message = '系统接口请求超时';
        } else if (message.includes('Request failed with status code')) {
            message = '系统接口' + message.substr(message.length - 3) + '异常';
        }
        ElMessage({ message: message, type: 'error', duration: 5 * 1000 });
        return Promise.reject(error);
    }
);
// 导出 axios 实例
export default service;
